Aqueous process to limit hydration of thin-film inorganic oxides

2016 
Abstract Aqueous-processed aluminum oxide phosphate (AlPO) dielectric films were studied to determine how water desorbs and absorbs on heating and cooling, respectively. In-situ Fourier transform infrared spectroscopy showed a distinct, reversible mono- to bidentate phosphate structural change associated with water loss and uptake. Temperature programmed desorption measurements on a 1-μm thick AlPO film revealed water sorption was inhibited by an aqueous-processed HfO 2 capping film only 11-nm thick. The HfO 2 capping film prevents water resorption, thereby preserving the exceptional performance of AlPO as a thin-film dielectric.
    • Correction
    • Source
    • Cite
    • Save
    • Machine Reading By IdeaReader
    18
    References
    8
    Citations
    NaN
    KQI
    []